ACP Seminar (Astronomy - Cosmology - Particle Physics)

Speaker: Michihisa Takeuchi (ICRR)
Title: Collider phenomenology of split-UED
Date (JST): Thu, Jul 09, 2009, 13:30 - 14:30
Place: Seminar Room at IPMU Prefab. B
Related File: temporary/h4r8jgahcqu6.pdf
Abstract: Collider signatures of colored KK particles are considered in split-universal extra dimension (split-UED), which is an extension of UED model solving recent anomalies in cosmic-ray positrons and electrons observed by PAMELA and ATIC/PPB-BETS.
Due to the large split in masses of KK quarks and other particles, hard pT jets and missing transverse momentum are generated, which make it possible to suppress the SM background and discover the signals.
Mainly, we focus on the MT2 distributions for the events with 2 high pT jets.
Z+jets events, which dominate the SM backgrounds for this signal, are also studied.
I also refer to the recent cosmic data published by FERMI and prospects of getting any signal at the LHC with it taken into account.